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A study of the influence of hierarchical nodes on the performance of selected parametric elements
Author(s) -
Delpak R.,
Peshkam V.
Publication year - 1986
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620220111
Subject(s) - parametric statistics , finite element method , representation (politics) , displacement (psychology) , internal stress , reduction (mathematics) , computer science , structural engineering , algorithm , mathematics , engineering , geometry , statistics , materials science , psychology , politics , political science , law , composite material , psychotherapist
A number of programs have been developed and tested to enable the routine addition of elements with internal nodes into most finite element packages. A subsequent examination was carried out to assess the effect of those nodes on (a) the accuracy of the displacements and stresses using parametric elements with varying formulation complexities, and (b) the possible additional cost in processing, owing to adequacy of representation. It was found in general that, by including the internal nodes, the representation of both the displacement and the stress fields improved dramatically. It was also found that having hierarchical nodes could lead to a reduction in the processing cost.